The "Party in the USA" singer, 19, posted a tweet June 24 that some media outlets interpreted as a hint she will soon tie the knot with Liam Hemsworth, 22. "Super lazy Sunday! Can't wait for next week!" the pop star wrote. "It'll be filled with happiness."

But according to Hemsworth's rep, the actor is in the middle of shooting Empire State with EmmaRoberts, 21, and NikkiReed, 24, in New Orleans. He will only be "back in L.A. for a night next week to receive an award from Australians in Film on the 27th," his rep tells Gossip Cop, debunking wedding rumors.